Ionia Weather Forecast

    • 49
    • 69

    Increasing Clouds

    • 43
    • 63

    Partly Sunny

    • 45
    • 62

    Mostly Sunny

    • 55
    • 69

    Partly Sunny

    • 55
    • 73

    Mostly Cloudy

    • 53
    • 68

    Slight Chance Rain Showers

Today 7 Oct Ontario

Mostly sunny and warmer with Highs Ranging from the mid 60s on the Hilltops to the upper 60s across the lower Elevations. South Winds 10 to 15 Mph, becoming southwest.

Tonight 7 Oct Ontario

Partly cloudy. A chance of Showers in the Evening, then Showers likely overnight. Warmer with Lows around 50. Southwest Winds 5 to 10 Mph, becoming light. Chance of rain 60 percent.

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  • Temperature Real-Time

Ionia Temperature Statistics

October Temperature

Rochester, Greater Rochester International Airport (15.5 miles)

  • Lowest 4 October, 2026

    42.1 °F

  • Average October

    59.4 °F

  • Highest 1 October, 2026

    78.7 °F

Climate (2021–2026)

Rochester, Greater Rochester International Airport (15.5 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.5 °F
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